Device for treating directly exposed photopapers



April 3, 1956 w. LIMBERGER DEVICE FOR TREATING DIRECTLY EXPQSED PHOTOPAPERS Filed Dec. 5, 1952 IIIIII gnwenOr/x m .Sl

United States Patent() DEVICE FOR TREATIN G DIRECTLY EXPOSED PHOTOPAPERS Walter Limberger, Hamburg, Germany,

Messrs. Lumoprint Zindler K. many Application December 5, 1952, Serial No. 324,171 Claims priority, application Germany December 5, 1951 4 Claims. (Cl. 95-89) assignor to G., Hamburg, Ger

the two papers and means for moving or transporting the two papers or sheets through this liquid and for pressing them onto each other. The moving or feeding means including more particularly two rollers of rubber or the like may be manually driven. It is also possible, however, to

provide a small electric motor for driving the feeding Y means. In this event, a transformator and a rectifier are preferably arranged between the motor and the network. In this manner, a uniform transport or feeding action and thus a constant period of treatment of the various parts of the papers or sheets to be treated are obtained.

Moreover, the operator may use both his hands for inserting the papers to be treated as well as for receiving the papers treated.

lt is an object of the present invention to improve a device of the kind referred to in such a manner that the liquid container and the driving motor are prevented from any undesired mutual displacement thereby ensuring a uniform driving and feeding action and protecting the motor and other parts of the device from any undesirable effort or stress.

A further object of the present invention is the provision of a device for treating directly exposed papers in which the liquid container may be easily removed from the driving mechanism for any purposes.

These and other objects, features and advantages of the present invention will be more fully explained with reference to the accompanying drawing which illustrates, by way of example only, a preferred embodiment of the device according to the invention, it being understood by anyone skilled in the art that the following description of this preferred embodiment is not to be designed as a definition of the limits of the invention.

In the drawing:

Fig. l is a longitudinal section of the casing and the base plate of the device according to the invention showing the driving mechanism and the liquid container in elevation,

Fig. 2 is a top view of the device shown in Fig. 1, and

Fig. 3 is a cross-section in accordance with section line lillll of Fig. l.

Referring now to Fig. 1, 1 is the base plate preferably of light metal casting. A driving mechanism generally shown at 2 and a liquid container 3 are mounted on the base plate. Furthermore, a two-part cover 4 rests on the base plate 1. A section 5 of the cover situated above the liquid container 3 may be easily removed, whilst another section 6 of the cover surrounding the driving mechanism is connected with the base plate in any convenient manner as for instance by means of screws. Between the driving mechanism 2 and the liquid container 3 a partition 7 is provided. This partitionpreferably forms an integral part of the base plate 1.

The driving mechanism 2 includes a motor 8 having in series a transformator 9 and a dry rectifier 10. A heat insulating screen Wall 11 is mounted between the rectier 10 at one side and the motor as well as the transformator 9 at the other side. The motor shaft 12 extends through an opening in the partition 7 into the chamber of the liquid container 3. To the end of the shaft 12 projecting into this chamber a sleeve 14 is fastened by means of a pin 13, a driving shaft 17 of the transport mechanism 16 engaging this sleeve and being secured thereto by means of a screw 15 or the like.

The feet 18 of the liquid container 3 engage channels or slots 19 provided in the base plate 1. These channels or slots guide the container in transverse direction and allow a displacement of the liquid container 3 so as to be displaced after having loosened the screws 15. In this manner, it is possible to remove the transport mechanism 16 from the motor shaft 12. On the other hand, a determined position of the shafts 12 and 17 of the motor 8 and of the transport mechanism 16 respectively may be easily obtained.

The cover section 5 is shown to have beveiled side walls having an entrance opening 20 and an exit opening 21 for inserting and withdrawing the paper sheets respectively. Approximately in the middle part of the casing section 5 upright stands 22 are fastened to the base plate 1. These stands have a substantially triangular notch the lower tip of which is enlarged so as to form a cylindrical opening. Opposite to these stands 22 bolts 23 having ends or heads 24 of greater diameter are mounted in the casing section 5. The bolts 23 may be pushed inwardly against the counter-action of springs not shown by means of outer knobs 25. For setting the casing section 5 onto the base plate 1 the bolts 2.3 are pressed inwardly by means of the knobs 25 so that the middle part of the bolts 23 can move through the triangular notches of the stands 22 into the circular openings therein. Upon releasing the knobs 25 the ends 24 of the bolts 23 are drawn into these openings by the counter-force of the springs thus holding the section 5 against any undesired displacement.

The liquid container 3 may be of any well-known construction and preferably comprises a casing of pressed material having a plurality of guiding tracks 26 for inserting the paper sheets as well as two pressing and feeding rollers not shown in the drawing.

It is to be noted that the entire chamber of the electric driving mechanism is separated from the chamber of the liquid container 3 by means of the partition and a sealing ledge 27 in a waterproof manner. A connecting cable not shown for connecting the apparatus with the network is likewise inserted into the apparatus in a waterproof manner, this cable preferably comprising a switch for starting the driving mechanism.

While the invention has been more fully explained in connection with a preferred embodiment shown in the drawing it is to be noted that various modifications may be made without departing from the scope of the invention as defined in the appended claims.

What l claim is:

l. A portable self-contained apparatus of the type described for treating a directly exposed photographic sheet of paper and for transferring the image of such sheet of paper to another sensitized sheet of paper comprising a at horizontal elongated base having a vertical transverse partition wall spaced inwardly from the ends of said base, a drive mechanism supported on the upper surface of said base and disposed upon one side of said wall, a removable cover section resting upon said base Y gated independently portable self-contained liquid container, for moistening said sheets of paper resting upon the-upper surface of said base upon the opposite sides of said wall from said drive mechanism, a second removable cover section resting upon said base and combining with saidv wall and the remaining portion of said base to provide a housing for said portable liquid container, transport mechanism for said sheets of paper disposed in said container and having a selectable drive connection with said drive mechanism through said partition wall, said second cover section having parallel elongated entrance and exit slots defined in the upper portion thereof and disposed above said container and transfer mechanism through which said sheets of paper are inserted and Withdrawn.

2. A portable self-contained apparatus of the type described for treating a directly exposed photographic sheet of paper and for transferring the image of such sheet of paper to another sensitized sheet of paper comprising a lat horizontal elongated base, housing structure supported upon said base and dening a pair of aligned chambers therewith, drive mechanism supported upon said base and located in one of said chambers, an elongated independently portable self-contained liquid container, for moistening said paper, located within said other chamber and resting upon said base, at least a portion of said housing structure being removable to enable said container to beV readily moved into and from said other chamber, transport mechanism, for said sheets of paper, disposed in said container and having a selectable drive connection with said drive mechanism, said housing having parallel elongated entrance and exit openings defined in the upper portion thereof disposed above said container and transport mechanism through which said sheets of paper areinserted a-nd withdrawn.

3. A portable self-contained apparatus of the type described for treating a directly exposed photographic sheet of paper and for transferring the image of such sheet of paper to another sensitized sheet of paper comprising a base, housingA structure supported upon said base and having at least one portion thereof readily removable, driving mechanism supported upon said base and enclosed by said housing structure, an independently portable sclf-contained liquid container, for moistening the paper, resting upon said base to one side of said drive mechanism and enclosed by a removable portion of said housing structure to enable said container to be readily moved to and from its resting position upon said base, transport mechanism, for said sheets of paper, disposed in said liquid container and having a selectable drive connection with said drive mechanism, said housing havingentrance and exit dening wall structure for the sheets of paper and disposed above said container and transport mechanism.

4. A portable self-contained apparatus of the type described in claim 3 wherein said container is supported for bodily movemnet upon said base to couple and uncouple said drive connection with said drive mechanism.

References Cited in the tile of this patent UNITED STATES PATENTS 2,657,618 Eisbein Nov. 3, 1953 FOREIGN PATENTS 315,396 Italy Feb. 24, 1934 925,787 France Mar. 3l, 1947 672,844 Great Britain May 28, 1952 

